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Permeable Membranes PUR/TETA and PUR/TEPA for CO2 Capture Prepared with One-Step Electrospinning Technology
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SYSNO ASEP 0565493 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Permeable Membranes PUR/TETA and PUR/TEPA for CO2 Capture Prepared with One-Step Electrospinning Technology Author(s) Hoskovec, J. (CZ)
Čapková, P. (CZ)
Vostiňáková, M. (CZ)
Ryšánek, P. (CZ)
Kaule, P. (CZ)
Tokarský, J. (CZ)
Benada, Oldřich (MBU-M) ORCID, RID
Blechta, V. (CZ)Article number fib10110100 Source Title FIBERS. - : MDPI - ISSN 2079-6439
Roč. 10, č. 11 (2022)Number of pages 16 s. Language eng - English Country CH - Switzerland Keywords CO2 adsorption ; electrospinning ; polyurethane nanofibers ; sorption capacity ; solid supported adsorbent Subject RIV JJ - Other Materials OECD category Nano-processes (applications on nano-scale) Method of publishing Open access Institutional support MBU-M - RVO:61388971 UT WOS 000895348200001 DOI 10.3390/fib10110100 Annotation A simple one-step technology of wire electrospinning is presented for the manufacturing of air-permeable CO2-capturing membranes, easily transferable to industrial production lines. The design of the chemically-modified polyurethane nanofiber membranes for CO2 capture was based on a combination of molecular modeling and technological experiments using one-step electrospinning (i.e., a modifying agent dissolved directly in a spinning solution). Polyurethane (PUR Larithane), chemically modified by TETA/TEPA amines, was used in the present study for the membrane design. Special attention was paid to two key parameters significant for the design of the functional unit, i.e., the CO2 sorption capacity and air permeability which depended on the amine concentration. The optimal combination of these parameters was found for the PUR/TEPA membrane (5 wt.% of TEPA in spinning solution): the sorption capacity was 13.97 cm3/g with an air permeability of 0.020 m/s. Molecular modeling proved to be a valuable tool that helped to clarify, at the molecular level, the structure of chemically-modified nanofibrous membranes. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2023 Electronic address https://www.mdpi.com/2079-6439/10/11/100#
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